zoelynn9104
17.10.2019 •
Mathematics
2x + 4(x+3)= 42 i just want to give people some points also i need this answer
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Ответ:
2x + 4 (x+3) =42
2x + 4x + 12 = 42
6x+ 12 =42
6x = 30
x=5
Ответ:
(1,4) when x = 1, k(1) = (1/4)^1 = 1/4FALSE
(3, 1/64) when x = 3, k(3) = (1/4)^3 = 1/64TRUE
(-1,4) when x = -1, k(-1) = (1/4)^-1 = 4TRUE
(0, 1/4) when x = 0, k(0) = (1/4)^0 = 1FALSE
answer
(3, 1/64)
(-1,4)